Gage-cock.



No. 880,786. 7 PATENTED MAR. 8, 1908.

J. J. FINNBGAN & C. E. WEBSTER.

GAG E 0001:. APPLICATION FILED 00T.10 1907.

UNETED TATE PATE'T tll Fl CE,

JAMES J. FINXEGAN AND CHARLES E. WEBSTER, OF BENWOOD, WEST VIRGINIA.

GAGE-COCK.

Specification of Letters Patent.

i Application tiled October 10. 1907- Serial No. 396.724.

Patented March 3,1908.

To all 'tLlIOIIt it may concern:

Be it known that we, Jauns J. FINNEGAN and CHARLES E. W'nns'rnic,citizens of the United States of America, and residents of Benwood,county of Marshall, and State ot West Virginia, have invented certainnew and useful Improvements in Gage-(locks, of which the l ollowing is aspeciti *ation.

This invention relates to new and useful improvements in gage-cocks forsteam engines or locomotives, and more particularly to an automaticdevice which admits ol' the removal ot a gage-cock without a resultantexhaustion ol' the steam from the boiler; and it consists in theparticular construction, arrangement and combination otparts which willhereinafter be l'ullv described.

The object of the invention is to provide an extremely simple andinexpensive valve device adaptedto be emplo ved in connection with anordinary gage-cock which admits ol' the operation or manipulation of thegagecock as ordinarily while said gage-cock is in place, but which uponthe removal of said gage-cock will automatically close the opening tothe atmosphere and etl'ec-tuallv prevent the. exhaustion of steam fromthe boiler.

in describing the invention in detail, reference is herein had to theaccompanving drawing, forming a. part of this specification, in whichFigure l is a side elevation of an ordinary gage-cock to which ourinvention is applied; Fig. 2 is an enlarged longitudinal sectional viewof the invention with the gage-cock detached therefrom; Fig. 3 is an endview of the valve; and Fig. 4- is a longitudinal seetional view of theinvention with the gagecock seated therein, showing the latter holdingthevalvein its normal unseated position.

l tel'erring to said drawing, in which like designating charactersdistinguish like parts throughout the several viewsl indi rates agage-cock of an ordinary type having the usual tapered threaded end 2i'ot' litting in place in the boiler, and 3 indicates the valve deviceconstituting the present inmrovement, said valve device being adaptedfor mounting in the boiler in precisely the same manner as that in whichthe gage-cock has hitherto been mounted, and also being adapted forhaving said. gage-cock mounted therein. Said valve device consists ot avalve casing l, a screw cap 5, and as wing-controllerl valve 6. Saidvalve casing has a tapered exteria Orly-threaded wall 7 for screwinginto the i ordinary gage-cock opening or seat and is provided with atapered threaded socket 8 for the reception of the end 2 of the,gage-cock, and with a socket or valvcchanr.bei 9 in the end thereofopposite to said socket 8,v the valve casing 4 being interiorlythreadedat the outer end of said chamber 9 for the reception of said screw cap5. A centtallyapertured wall it) separates the socket 8 and 'chanilmrt), the central aperture 11 admitting ot' 'con'nnunication therebetween,and a tapered seat 12 is provided for the valve 6. Said valve has alongitudinal stem 13 which is projected through and is slidable in saidscrew cap 5. A coil-spring 1st embracing said stem is seated at one endagainst the rear .t'ace ol' the valve. and at its other end against theinner faceof the screw cap, normally holding said valve seated. in thewalls of said valve casing 4 is provided one or more ports 15 whichadmit oi the entrance of steam from the boiler to the chamber 9, whichsteam is admitted therefrom, when the valve 6 is unseated, to thegage-cock 1. The said valve is normally held. unscated against thetension of the spring 14 by said gage-'cock, the extreme end of whichstands in bearing engaged with torwardly-directed prongs 16 carried bysaid valve, and conse uently said gage-cock is allowed to perform itsfunction in the usual way without hindrance of any kind; But, when thegagecock is withdrawn, the spring eil'ects the seating of the valve,thus eilec-tually preventing the escape of steam from the boiler.

llaving thus described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. in a device of the character described, the combination with agage-cock, of a valve device threaded upon the tapered end of saidgage-cock, said valve device consisting of a tapered exteriorly-threadedcasing, liavingin its outer end a threaded socket in which the gagt cockis seated, and having a valve chamber in its opposite end, a closure forthe end cl said second socket, a ccntrally-aper tured wall between saidsockets, a spring controlled valve in said chamber for closing theaperture in said wall, prongs carried b y the face of said valve andprojected through said aperture. against the end of the gagecoe c, whichlatter nornii llv holds said valve unseated against the tension of thevalvecontroiling spring, and inlet-ports in said casing for admittingsteam to said chamber.

2. In a device of the character described, the combination wlth avgage-cock ol a "valve devlce threaded upon the tapered end ol saidgage-cock, said valve device consisting of a tapered ex;eriorly-thremledeasing having in its outer e nd a threaded socket in which the gage-cockis seated, and having a valve chamber in its opposite end steaminletports in the walls of said ehainher, a valve seat between saidchamber and said socket, a spring-contr lled \illYG in said ehamher, andan element carried by said valve projected through into bearingengagement with said gage-cock.

3. In a device of the character described, a Valve device comprising acasing adapted for mounting in the gage-cock opening of a boiler andhavim a threaded socket in its outer end fo the reception. ol agage-coclg a socket in the inner end of said casing, av closure for flalast-n1entioned socket, a valve seat interwaliate said sockets, aspring-controlled rain: in said last-mentioned. socket, prongs earriedby said valve and projected into th 'lirst-inentioned socket, saidprongs hein; adapted to he engaged by the end of the gage-cock l'ornormally holding said valve unsealed, and ports for admitlil'ig ol apassage ol' strain into said last-nientioned socket.

.ln leslimoiry whereof we allixour signatures in presenee of twoWitnesses.

.lA M l lS J. l l NNEGAN. (fl IA H l RES 1*). VEBS'FER. \Yilnesses:

ll. l .DUNLAP, Flame A. lmNKA'an.

